“ The sustainable landfill”   “ Making waste green”   R. Lems M.Sc. , R&D Manager  DMT Environmental Technology rlems@dmt-...
DMT <ul><li>Founded in 1987 </li></ul><ul><li>Custom solutions for environmental problems </li></ul><ul><li>(Turn-key) Pro...
Odour Sludge BioSulfurex ® CarbO 2 rex ® DMT Odourex ® Clean water Clean air Biogas I-WOX  ® MemBioRex ® Wastewater Air pu...
Sustainable ?!
<ul><li>Leachate </li></ul><ul><ul><li>Toxic </li></ul></ul><ul><ul><li>Eutrophication </li></ul></ul><ul><ul><li>Oxygen d...
 
Landfill options
Biogas treatment Substance % Methane, CH 4 45-75 Carbon dioxide, CO 2 25-45 Carbon monoxide, CO 0-0,3 Nitrogen, N 2 1-15 W...
H 2 S + O 2  =>  H 2 SO 4 (acid production!) T=30C pH= 0.5-1.5 Biological desulphurization DMT-BioSulfurex ® No Chemical u...
Biogas in Scrubber 9bar Flash  Vessel Drying Unit Stripper Water CO 2  production Treated Biogas: 98% CH 4 No Chemical use...
Plant Examples Biogas upgrading DMT-CarbO 2 rex ®
Screen Bioreactor Ultra- filtration Nano filtration Reverse Osmoses Irrigation water Drinking water Leachate treatment DMT...
Leachate treatment DMT-MemBioRex ®
<ul><li>Problems for Leachate treatment </li></ul><ul><ul><li>High power demand for aeration  </li></ul></ul><ul><ul><li>M...
The sustainable Landfill
The sustainable Landfill 50ha 6.000-7.000Nm 3 /hr 100-125m 3 /hr Biogas 5.500-6.500Nm 3 /hr Natural gas 4.800-5.300Nm 3 /h...
<ul><li>Input is only waste  (no more energy/ fuel) </li></ul><ul><li>Output is energy and clean water </li></ul><ul><li>E...
“ The sustainable landfill”   “ Making waste green”   R. Lems M.Sc. , R&D Manager  DMT Environmental Technology rlems@dmt-...
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The Sustainable Landfill

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Turning waste into usefull products like energy, clean water and fertilizers

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The Sustainable Landfill

  1. 1. “ The sustainable landfill” “ Making waste green” R. Lems M.Sc. , R&D Manager DMT Environmental Technology rlems@dmt-et.nl
  2. 2. DMT <ul><li>Founded in 1987 </li></ul><ul><li>Custom solutions for environmental problems </li></ul><ul><li>(Turn-key) Project realization </li></ul><ul><li>Professional partner for industry and government </li></ul><ul><li>Multi disciplinary, international, leading company </li></ul>
  3. 3. Odour Sludge BioSulfurex ® CarbO 2 rex ® DMT Odourex ® Clean water Clean air Biogas I-WOX ® MemBioRex ® Wastewater Air purification Bioreactor Digesting
  4. 4. Sustainable ?!
  5. 5. <ul><li>Leachate </li></ul><ul><ul><li>Toxic </li></ul></ul><ul><ul><li>Eutrophication </li></ul></ul><ul><ul><li>Oxygen depletion </li></ul></ul><ul><li>Biogas </li></ul><ul><ul><li>CH 4 /CO 2 / H 2 S/H 2 SO 4 </li></ul></ul><ul><ul><li>Heat </li></ul></ul>
  6. 7. Landfill options
  7. 8. Biogas treatment Substance % Methane, CH 4 45-75 Carbon dioxide, CO 2 25-45 Carbon monoxide, CO 0-0,3 Nitrogen, N 2 1-15 Water, H 2 O Saturated Hydrogen sulfide, H 2 S 0,1-0,5 Oxygen, O 2 0.1-5
  8. 9. H 2 S + O 2 => H 2 SO 4 (acid production!) T=30C pH= 0.5-1.5 Biological desulphurization DMT-BioSulfurex ® No Chemical use!
  9. 10. Biogas in Scrubber 9bar Flash Vessel Drying Unit Stripper Water CO 2 production Treated Biogas: 98% CH 4 No Chemical use! Biogas upgrading DMT-CarbO 2 rex ®
  10. 11. Plant Examples Biogas upgrading DMT-CarbO 2 rex ®
  11. 12. Screen Bioreactor Ultra- filtration Nano filtration Reverse Osmoses Irrigation water Drinking water Leachate treatment DMT-MemBioRex ® 300-1,500 5-50 2,000-4,500 2,000-5,000 10,000-50,000 Leachate 0 TSS <0.5 P <25 NH 4 <150 Nt <125 COD Effluent NF
  12. 13. Leachate treatment DMT-MemBioRex ®
  13. 14. <ul><li>Problems for Leachate treatment </li></ul><ul><ul><li>High power demand for aeration </li></ul></ul><ul><ul><li>Minimum temperature >20C for optimal efficiency </li></ul></ul><ul><ul><li>High pH/ Ammonium (toxic) </li></ul></ul><ul><ul><li>High alkalinity (Calcium/ Magnesium) </li></ul></ul><ul><ul><li>Sludge production </li></ul></ul><ul><li>Solution from biogas treatment </li></ul><ul><ul><li>CHP produces heat and electricity </li></ul></ul><ul><ul><li>Biological desulphurization produces sulphuric acid </li></ul></ul><ul><ul><li>CO 2 can be used to precipitate Ca/ Mg (CaCO 3 ) </li></ul></ul><ul><ul><li>Sludge can be used to make more biogas </li></ul></ul>
  14. 15. The sustainable Landfill
  15. 16. The sustainable Landfill 50ha 6.000-7.000Nm 3 /hr 100-125m 3 /hr Biogas 5.500-6.500Nm 3 /hr Natural gas 4.800-5.300Nm 3 /hr 300 trucks 15m 3 /day diesel 4.000-4.500 Nm 3 /hr Natural gas 3 Mw e and 3.5 Mw q (1000Nm 3 /hr) 30 ton sludge/day 100-125m 3 /hr 1.5Mwq 500Nm 3 /hr 250 kg/hr Fertilizer 90-100m 3 /hr
  16. 17. <ul><li>Input is only waste (no more energy/ fuel) </li></ul><ul><li>Output is energy and clean water </li></ul><ul><li>Emission reduction is >90% </li></ul>Sustainable ?! YES!
  17. 18. “ The sustainable landfill” “ Making waste green” R. Lems M.Sc. , R&D Manager DMT Environmental Technology rlems@dmt-et.nl

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